Steel 5KH2MNF (ДИ32)

Designation

Name The value
Designation GOST Cyrillic 5Х2МНФ
Designation GOST Latin 5X2MHF
Transliteration 5H2MNF
By chemical elements 5Cr2MoНV
Name The value
Designation GOST Cyrillic ДИ32
Designation GOST Latin DI32
Transliteration DI32
By chemical elements CuИ32

Description

5KH2MNF steel is used: for the production of large solid stamps (with a side of square or diameter up to 600 mm) for forming forgings from structural steels and high temperature alloys hammers and crank presses (instead of less heat-resistant steel grades 5KHNM, 4KHMFS); tools (clamping and forming panels composing and forming punches) for the landing of structural steel and heat resisting alloys on horizontal forging machines (GCM); knives for hot cutting.

Standards

Name Code Standards
Sheets and strips В33 GOST 4405-75
Bars and shapes В32 GOST 5950-2000, GOST 14955-77
Processing of metals by pressure. Forgings В03 TU 14-1-1530-75

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
GOST 5950-2000 0.46-0.53 ≤0.03 ≤0.03 0.4-0.7 1.5-2 0.1-0.4 1.2-1.6 Rest ≤0.3 0.3-0.5 ≤0.03 0.8-1.1 ≤0.2
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Quenching in oil with 1040-1060 °C
15 ≥1500 ≥1750 ≥10 ≥40 ≥540

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness